Shaped charge having a radial momentum balanced liner
US10209040B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Apr 18, 2014 |
| Grant date | Feb 19, 2019 |
| Priority date | — |
| Expiry date | Sep 10, 2034 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B43/117
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A disclosed example embodiment includes a shaped charge for use in a well perforating system. The shaped charge includes a housing having a discharge end and an initiation end. A liner is positioned with the housing. A main explosive is positioned within the housing between the liner and the initiation end of the housing. The liner has a radially outwardly disposed concave section having a progressively decreasing wall thickness in the direction from the initiation end to the discharge end of the housing and a radially inwardly disposed convex section having a progressively increasing wall thickness in the direction from the initiation end to the discharge end of the housing such that the liner is radial momentum balanced and operable to form a coherent jet having a hollow leading edge following detonation of the shaped charge.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.